Tea gets a bad rep because it’s weaker than coffee (at least if unmedicated ADHD), but if you just use 2 to 4 bags at the same time in the same cup, you get something very strong.
My question is, does this require more water as more tea bags are added? Like could I dunk 5 or 10 tea bags in 2 cups of water, in theory, to make an extremely strong cup of tea?
Thanks for your help as always!! 
After a certain point, definitely.
I recall being on a Boy Scout campout, and one of the guys tied a huge number of tea bags to the end of a rope and lowered it into about 1" of water in the standard Boy Scout coffeepot. I think he did it just to see what would happen.
The black stuff that came out definitely needed more water.
Pretty much, yes.
Caffeine dissolves in boiling water up to 66g/100ml, and tea at normal strength has much less (100mg/100ml)
So for caffeine, at least, you can fit a lot more in that one teabag can reasonably provide. It would probably be awful though.
You’re doing it wrong.
How to make tea:
Well, others disagree:
http://www.itoen.com/preparing-tea
" freshly drawn, cold water " for example. Other insist that the water must be boiled in a kettle , not a microwave, and so forth.
Ah, but the key phrase here is “normal strength”, and for that, time is an important variable. For a standard ratio of 1 bag per cup, you need to remove the bag after a set time, lest it become overbrewed. So a single teabag is capable of going beyond “normal strength” tea.
So, if a single bag were left indefinitely, would it saturate at the same strength as more teabags? (though with more teabags you’d get you there faster of course.)
IIRC, my family used to make iced tea by “overbrewing” several tea bags with a small amount of water (since it would boil much quicker), then adding a whole bunch of cold water.
Moved to Cafe Society.
Colibri
General Questions Moderator